Assignee

CH HANSON CO

US·2 granted patents·4 citations·filing 2020–2020

Technology mixB43K1 B43L1 G01B1

Top patents by PatentIndex Score

2 records

0185US11040568B1Convertible apparatus for sharpening marking instrumentsCH HANSON CO·Filed 2020·Granted Jun 22, 2021·4 cites·7 claims
0238US11932047B2Writing utensil with scale having a reference guideCH HANSON CO·Filed 2020·Granted Mar 19, 2024·0 cites·6 claims

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